Remote Reading Woltman Water Meter
Application
For measurement of high flows of cold potable water passing through the pipelines in sizes of 40mm to 600mm.
Features
*Magnetic drive, lower transmission resistance.
*Sealed dry dial register ensures clear reading.
*The measuring mechanism can be removable from the body for checking, maintaining and replacing, and the body needn't be dismantled from the pipeline.
*Inter-exchangeable parts.
*Low pressure loss. Long working life.
*Can be equipped with reed switch (register can't rotate).
Standard Compliance Technical data conforms to ISO 4064 Class B, R50, R63 and R80 standard
Working Conditions
Water temperature: ≤50ºC for cold water meter
Water temperature: ≤90ºC for hot water meter
Water pressure: ≤1MPa or 1.6MPa or 4.0 MPa optional (10bar or 16bar r 40 bar optional)
Installation requirements
*The meter can be installed in horizontal, vertical or inclined position.
*A horizontal position with the register face upwards is recommended.
*Pipeline must be flushed before installation.
*The meter should be constantly full of water during operation.
Maximum Permissible Error
In the lower zone from Qmin(Q1) inclusive up to but excluding Qt (Q2) is ±5%.
In the upper zone from Qt(Q2) inclusive up to and including Qmax(Q4) is ±2%(cold water meter).
In the upper zone from Qt(Q2) inclusive up to and including Qmax (Q4) is ±3% (hot water meter).
MAIN TECHNICAL DATA According to ISO4064 :2003 (Old Standard)
Meter Size |
Measuring |
Max Flow |
Nominal Flow |
Transitional Flow |
Min Flow |
Min Reading |
Max Reading |
mm |
class |
m³/h |
m³ |
||||
40 |
B |
20 |
10 |
0.8 |
0.2 |
0.0002 |
999999 |
50 |
B |
30 |
15 |
3 |
0.45 |
0.0002 |
999999 |
65 |
B |
50 |
25 |
5 |
0.75 |
0.0002 |
999999 |
80 |
B |
80 |
40 |
8 |
1.2 |
0.002 |
999999 |
100 |
B |
120 |
60 |
12 |
1.8 |
0.002 |
999999 |
125 |
B |
200 |
100 |
20 |
3 |
0.002 |
999999 |
150 |
B |
300 |
150 |
30 |
4.5 |
0.002 |
999999 |
200 |
B |
500 |
250 |
50 |
7.5 |
0.002 |
999999 |
250 |
B |
800 |
400 |
80 |
12 |
0.002 |
999999 |
300 |
B |
1200 |
600 |
120 |
18 |
0.02 |
9999999 |
350 |
B |
1600 |
800 |
160 |
24 |
0.02 |
999999999 |
400 |
B |
2000 |
1000 |
200 |
30 |
0.02 |
999999999 |
500 |
B |
3000 |
1500 |
300 |
45 |
0.02 |
999999999 |
600 |
B |
6000 |
3000 |
600 |
90 |
0.02 |
999999999 |
MAIN TECHNICAL DATA According to ISO4064:2005 (New Standard)
Meter Size |
Measuring |
Q4 |
Q3 |
Q2 |
Q1 |
Min Reading |
Max Reading |
mm |
R |
m³/h |
|
|
|
m³ |
|
40 |
63 |
20 |
16 |
0.41 |
0.25 |
0.0002 |
999999 |
50 |
63 |
31.25 |
25 |
0.63 |
0.40 |
0.0002 |
999999 |
65 |
80 |
50 |
40 |
0.80 |
0.50 |
0.0002 |
999999 |
80 |
80 |
78.7 |
63 |
1.26 |
0.79 |
0.002 |
999999 |
100 |
80 |
125 |
100 |
2.00 |
1.25 |
0.002 |
999999 |
125 |
80 |
200 |
160 |
3.20 |
2.00 |
0.002 |
999999 |
150 |
80 |
312.5 |
250 |
5.00 |
3.13 |
0.002 |
999999 |
200 |
63 |
500 |
400 |
10.16 |
6.35 |
0.002 |
999999 |
250 |
50 |
787 |
630 |
20.16 |
12.60 |
0.002 |
999999 |
300 |
50 |
1250 |
1000 |
32 |
20 |
0.02 |
9999999 |
350 |
50 |
2000 |
1600 |
51.2 |
32 |
0.02 |
999999999 |
400 |
50 |
3125 |
1600 |
51.2 |
32 |
0.02 |
999999999 |
500 |
50 |
5000 |
2500 |
80 |
50 |
0.02 |
999999999 |
600 |
50 |
7870 |
4000 |
128 |
80 |
0.02 |
999999999 |
Dimensions and Weight
Meter size |
Length L |
Width W |
Height H |
Connecting thread |
||
mm |
mm |
D |
Bolt circle Dia D1 |
Connecting bolt |
||
40 |
200 |
256 |
400 |
165 |
125 |
4xM16 |
50 |
200 |
256 |
400 |
165 |
125 |
4xM16 |
65 |
200 |
256 |
400 |
185 |
145 |
4xM16 |
80 |
225 |
276 |
400 |
200 |
160 |
8xM16 |
100 |
250 |
286 |
400 |
220 |
180 |
8xM16 |
125 |
250 |
301 |
400 |
250 |
210 |
8xM16 |
150 |
300 |
346 |
500 |
285 |
240 |
8xM20 |
200 |
350 |
373 |
500 |
340 |
295 |
8xM20 |
250 |
450 |
493 |
730 |
395 |
350 |
12xM20 |
300 |
500 |
516 |
730 |
445 |
400 |
12xM20 |
350 |
500 |
560 |
730 |
520 |
470 |
12xM21 |
400 |
600 |
631 |
830 |
565 |
515 |
16xM24 |
500 |
800 |
785 |
930 |
715 |
650 |
20xM30 |
600 |
1000 |
865 |
1030 |
840 |
770 |
20xM33 |